package com.example.demo4.activity;

import android.app.Activity;
import android.os.Bundle;

import androidx.annotation.Nullable;

import com.example.demo4.R;

public class ActivityA extends Activity {

    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.act_a);
    }
}
